Custom Grand Audio Class a Tube Power Amplifier Professional Vacuum Tube AMP 6n2 6p1 HiFi Stereo Sound Speaker Amplifier

• Noise: 88dB
• Hi-Fi: Hi-Fi
• Activity: Active
• Operation Mode: Welding by Hand Point-to-Point Upgrade Version
• Speaker System: 2.0 Channel
• Speaker Material: Metal
• Model NO.: GA20
• Application: HiFi Amplifier
• Certification: CE, RoHS, FCC
• Monitor: No
• THD: 1% (1kHz)
• Color: Black, Silver
• Customized: OEM, ODM
• Output Power: 4wx2
• Frequency Response: 20Hz-20kh
• Input Voltage: 110V/ 220V
• Main Transformer Power: 75W
• Output Impedence: 4ohm 8ohm
• Power: 76 * 40 230V 0.15A, 3.15V * 2 3A 75W
• Output Transformer: 5K 66 * 32 8W
• Tube: 6z4*2 6n2+6p1*2
• Double 6z4 Rectifier: 6n2 Push 6p1
• Transport Package: Double Strong Carton Box
• Specification: 31*26*16(cm)
• Trademark: Grand, OEM
• Origin: China
• HS Code: 8518400090
• Production Capacity: 50PCS/Month

Product Description

Specification:
Parameter:
Output power: 4Wx2
suitable for More than 90db sensitivity speakers
Frequency response: 20Hz-20KH
Input voltage: 110V/ 220V
Main transformer power: 75W
Output impedence: 4ohm 8ohm
Power: 76 * 40 230v 0.15a, 3.15v * 2 3a 75W
Output transformer 5k 66 * 32 8W
Tube: 6Z4*2 6n2+6p1*2
6N2 push 6P1 (double 6Z4 rectifier)

Product Details:
1. Tube amp must connected with speakers before turning ON. Strictly prohibit send signals to amp without connected loads (speakers) or load short circuit when the switch is ON.
2. Too high or too low power supply voltage does irreversible harm to the amp,preferably less than 5% of the specified voltage. If your mains voltage exceeds this value, often best to use with the AC power supply.
3. Temperature is higher when tube amps working, placing attention to ventilation, cooling.
4. In the boot or just shut down for a period of time (within 30 minutes) Do not spill liquid on the tubes.
5. You should take about 100h time to operate the amp.RUN-IN to the amp gives it's best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method.
6. If you donot sure how to plug the tubes, please contact us before try it

Speakers connection:
All tube amplifier used with stereo mode: L(left) and R(right) speakers.
Normally there are 6 speaker cable connectors: +8L, +4L, -0L, -0R, +4R, +8R
Example: +8L and -0L are for connecting with your Left 6-8ohms speaker
-0R, +4R is for connecting with your Right 4ohms speaker

Packing List:
1 x tube amplifier

Amp Name	Custom Grand Audio Class A Tube Power Amplifier Professional Vacuum Tube Amp 6n2 6p1 Hifi Stereo Sound Speaker Amplifier
Parameter version	Output power: 4Wx2 suitable for More than 90db sensitivity speakers Frequency response: 20Hz-20KH Input voltage: 110V/ 220V Main transformer power: 75W Output impedence: 4ohm 8ohm Power: 76 * 40 230v 0.15a, 3.15v * 2 3a 75W Output transformer 5k 66 * 32 8W Tube: 6Z4*2 6n2+6p1*2 6N2 push 6P1 (double 6Z4 rectifier)
Features	1. Tube amp must connected with speakers before turning ON. Strictly prohibit send signals to amp without connected loads (speakers) or load short circuit when the switch is ON. 2. Too high or too low power supply voltage does irreversible harm to the amp,preferably less than 5% of the specified voltage. If your mains voltage exceeds this value, often best to use with the AC power supply. 3. Temperature is higher when tube amps working, placing attention to ventilation, cooling. 4. In the boot or just shut down for a period of time (within 30 minutes) Do not spill liquid on the tubes. 5. You should take about 100h time to operate the amp.RUN-IN to the amp gives it's best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method. 6. If you donot sure how to plug the tubes, please contact us before try it
Specification	All tube amplifier used with stereo mode: L(left) and R(right) speakers. Normally there are 6 speaker cable connectors: +8L, +4L, -0L, -0R, +4R, +8R Example: +8L and -0L are for connecting with your Left 6-8ohms speaker -0R, +4R is for connecting with your Right 4ohms speaker
Brand	Grand, OEM, ODM
Certification	CE, ROHS, FCC
Tube Brand	Ruby, Shuguang, JJ, EH, etc
Style	Hifi stereo tube amp

Introduction:
Our company has 230 workers, include 15 professional engineers. They supervise the whole producing line from choose material till packing. We can strictly arrange the products as your requests.
Grand Technology is a manufacturer of musical instruments and accessories, which brand is "Grand".
Our factory is located in one of the most important ports of South China, Shekou, Guangdong, Near HK, connects with main highways and airports.
As the professional manufacturer, we supply kinds of musical products such tube guitar amplifiers, hand wired tube guitar amps, point to point amps, replica pedals and amps, electric guitars, acoustic guitars, ukulele, banjo, piano, etc many kinds of musical Instrument gears.
We only provide good quality products with low prices, which are selling well in the international markets, such as USA, Europe, Japan, Korea, South Africa, Kenya, South America, etc. We have plenty experiences in exporting, and be good at holding the mainstream of musical instrument markets.
At present, we establish technology, purchasing, and sales groups to serve our customers. We are thinking in your way, doing as your requests and eager to be your reliable supplier.
Any inquiry will be welcome and highly appreciated.

Custom amplifier project?
We are specialized in OEM/customize guitar, AMP, pedal, etc order, if you need a customize guitar amplifier, please feel free to talk with us.
Please feel free to ask me project example for reference.
Please beware the customize guitar AMP can take as long as 45-90 days depends on AMP schemaitc complex term.
Our Services:
1. OEM/ODM factory direct.
2. Professional engineers who have the ability to create what customers need.
3. High quality guarantee with competitive price.
4. Have a full set of testing equipment for products' functions to ensure reliable quality.
5. Fast feedback within 2 hours.
6. Shipping on-time.
7. Aftersale service, if any reason in our side, we can free exchange for you.
8. All of our product have attained CE, RoHS and related certificates approval.
FAQ:
Q1:What is your Warranty for the products?
A1:We provide 1 Years' Warranty and 7 days Return Services.
More details pls contact our Sales.

Q2:May I buy samples from you?
A2:Yes! You are welcome to place sample order to test our superior quality and service.

Q3: What's the leading time? (How long do you need to prepare my goods?)
A3:10 working days for sample orders.
30 working days for bulk order (based on different quantities).

Q4: How will you deliver my goods to me? How long do I need to wait before my goods arrive?
A4:We offer many shipping ways like DHL, UPS, FedEx, TNT ,EMS to enable our customers get their goods rapidly at door. We also ship by economic method such as air cargo and sea cargo, Direct line, Air Mail according to clients' request.
3-7 days for international express, 5-7 days for air cargo, 20-40 days via sea cargo.

Q5: How is your product quality?
A5:We provide unrivaled Quality - Very rigorous testing process for Incoming Quality Control, Input Process Quality Control, and Final Quality Control for every piece. We follow 20 QC test procedure, and do 100% FQC to ensure your satisfaction.

Q6: Can you put my brand name (logo) on the products?
A6:Yes! We can provide professional OEM services to make it your brand even for your trial sample order.

A7: If your order is over 20pcs, we can make your own logo badge brand on the amp for free! About other more details, it's according to your special requirement.

Q8: What payment method do you accept?
A5: T/T(Bank transfer), Western Union, Paypal, Escrow, etc.

Q9: Do you have any After-Sales service?
A9:Yes! We have professional After-sales service
If you have any technical problem or questions with the goods, welcome to contact our Technical Support Dept. or our sales directly.

Q10: Are you just trading company or factory?
A10: We are professional manufacturer for musical instruments products. We can supply the unrivaled Quality and Services with competitive factory price.

Choose Amp, Choose Grand!!!